Accommodation stimulus–response function and retinal image quality

Accommodation stimulus-response function (ASRF) and its relationship to retinal image quality were investigated using a modified wavefront sensor. Ten subjects were presented with six vergence stimuli between 0.17 D and 5 D. For each vergence distance, ocular wavefronts and subjective visual acuity were measured. Wavefronts were analysed for a fixed 3-mm pupil diameter and for natural pupil sizes. Visual Strehl ratio computed in the frequency domain (VSOTF) and retinal images were calculated for each condition tested. Subjective visual acuity was significantly improved at intermediate vergence distances (1D and 2D; p < 0.01), and only decreased significantly at 5 D compared with 0.17 D (p < 0.05). VSOTF magnitude was associated with subjective visual acuity and VSOTF peak location correlated with accommodation error. Apparent accommodation errors due to spherical aberration were highly correlated with accommodation lead and lag for natural pupils (R(2) = 0.80) but not for fixed 3-mm pupils (R(2) < 0.00). The combination of higher-order aberrations and accommodation errors improved retinal image quality compared with accommodation errors or higher order aberrations alone. Pupil size and higher order aberrations play an important role in the ASRF.

[1]  A. Bradley,et al.  Accuracy and precision of objective refraction from wavefront aberrations. , 2004, Journal of vision.

[2]  G. van den Brink,et al.  Measurements of the geometrical aberrations of the eye , 1962 .

[3]  D. R. Iskander,et al.  Retinal image quality, reading and myopia , 2006, Vision Research.

[4]  Charlotte A Hazel,et al.  Wavefront Aberration and Its Relationship to the Accommodative Stimulus-Response Function in Myopic Subjects , 2003, Optometry and vision science : official publication of the American Academy of Optometry.

[5]  P. A. Ward,et al.  Effect of pupil size on steady state accommodation , 1985, Vision Research.

[6]  Joanne Wood,et al.  Microfluctuations of steady-state accommodation and the cardiopulmonary system , 1995, Vision Research.

[7]  P. Denieul,et al.  Effects of stimulus vergence on mean accommodation response, microfluctuations of accommodation and optical quality of the human eye , 1982, Vision Research.

[8]  J. White,et al.  Effect of accommodative adaptation on static and dynamic accommodation in emmetropia and late-onset myopia. , 1999, Optometry and vision science : official publication of the American Academy of Optometry.

[9]  Mutti,et al.  AC/A ratio, age, and refractive error in children , 1999, American journal of ophthalmology.

[10]  W N Charman,et al.  Near vision, lags of accommodation and myopia , 1999, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[11]  Sotiris Plainis,et al.  The effect of ocular aberrations on steady-state errors of accommodative response. , 2005, Journal of vision.

[12]  Huseyin Boyaci,et al.  Estimating the glossiness transfer function induced by changing illumination and testing its transitivity , 2004 .

[13]  Depth of Focus and Accommodation for Sinusoidal Gratings as a Function of Luminance , 1986, American journal of optometry and physiological optics.

[14]  Larry N Thibos,et al.  Metrics of optical quality derived from wave aberrations predict visual performance. , 2004, Journal of vision.

[15]  M. Rosenfield,et al.  Do Progressing Myopes Show Reduced Accommodative Responses? , 2002, Optometry and vision science : official publication of the American Academy of Optometry.

[16]  Susana Marcos,et al.  The depth-of-field of the human eye from objective and subjective measurements , 1999, Vision Research.

[17]  H C Howland,et al.  Laboratory, Clinical, and Kindergarten Test of a New Eccentric Infrared Photorefractor (PowerRefractor) , 2000, Optometry and vision science : official publication of the American Academy of Optometry.

[18]  P B Kruger,et al.  Small Amounts of Chromatic Aberration Influence Dynamic Accommodation , 1995, Optometry and vision science : official publication of the American Academy of Optometry.

[19]  A. Bradley,et al.  Predicting subjective judgment of best focus with objective image quality metrics. , 2004, Journal of vision.

[20]  K. Schmid,et al.  The autonomic control of accommodation and implications for human myopia development: a review , 2003, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[21]  A. Bradley,et al.  Monocular Diplopia Caused by Ocular Aberrations and Hyperopic Defocus , 1996, Vision Research.

[22]  Austin Roorda,et al.  Monochromatic aberrations provide an odd-error cue to focus direction. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.

[23]  G. Hung,et al.  A unifying theory of refractive error development , 2000, Bulletin of mathematical biology.

[24]  B. Gilmartin,et al.  Disparity‐induced accommodation in late‐onset myopia , 1988, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[25]  Frank Schaeffel,et al.  An evaluation of the lag of accommodation using photorefraction , 2003, Vision Research.

[26]  David A. Atchison,et al.  Measurement of monochromatic ocular aberrations of human eyes as a function of accommodation by the howland aberroscope technique , 1995, Vision Research.

[27]  B. Gilmartin,et al.  EFFECT OF A NEAR‐VISION TASK ON THE RESPONSE AC/A OF A MYOPIC POPULATION , 1987, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[28]  G Heron,et al.  Relationship between visual acuity and observation distance , 1995, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[29]  M. Bullimore,et al.  Steady-state accommodation and ocular biometry in late-onset myopia , 2004, Documenta Ophthalmologica.

[30]  C. Johnson,et al.  Effects of luminance and stimulus distance on accommodation and visual resolution. , 1976, Journal of the Optical Society of America.

[31]  Richard Held,et al.  The association of wavefront aberration and accommodative lag in myopes , 2005, Vision Research.

[32]  Austin Roorda,et al.  A population study on changes in wave aberrations with accommodation. , 2004, Journal of vision.

[33]  R. Held,et al.  Myopic children show insufficient accommodative response to blur. , 1993, Investigative ophthalmology & visual science.

[34]  Y. Tano,et al.  Wavefront analysis in eyes with accommodative spasm. , 2003, American journal of ophthalmology.

[35]  R. Held,et al.  A dynamic relationship between myopia and blur-driven accommodation in school-aged children , 1995, Vision Research.

[36]  M Millodot,et al.  THE EFFECT OF REFRACTIVE ERROR ON THE ACCOMMODATIVE RESPONSE GRADIENT * , 1986, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[37]  L. Gray,et al.  Retinotopic accommodation responses in myopia. , 2003, Investigative ophthalmology & visual science.

[38]  N C Strang,et al.  Differences in the accommodation stimulus response curves of adult myopes and emmetropes , 1998, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[39]  Christopher W. Tyler,et al.  Component analysis of BOLD response , 2004 .

[40]  J. Schwiegerling.  Scaling Zernike expansion coefficients to different pupil sizes. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.

[41]  M. Collins.  The effect of monochromatic aberrations on Autoref R‐1 readings , 2001, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[42]  How good is the match between the plane of the text and the plane of focus during reading? 1 , 1999, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[43]  James A. Ferwerda,et al.  Dalton's Jungle: a video game for assessing color anomalies in children's vision , 2004 .

[44]  E. Sarver,et al.  Interaction between aberrations to improve or reduce visual performance , 2003, Journal of cataract and refractive surgery.

[45]  S. Burns,et al.  Monochromatic aberrations in the accommodated human eye , 2000, Vision Research.

[46]  The effect of spherical and other aberrations upon the modulation transfer of the defocussed human eye , 1998, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[47]  Vision Research , 1961, Nature.

[48]  Meredith W. Morgan,et al.  ACCOMMODATION AND ITS RELATIONSHIP TO CONVERGENCE , 1944 .